I,m really not trying to be mean but It seems like your only post are of the nature where can I find............ well let me save you some future posts all can be found @ www.google.com
Everything I have read tells me it is a custom and not available to the public. According to 3 news sites, they list that head as a 'fatter' version of their standard heads.
Chances are though, since it was mounted to a winner, you will find one soon!